Caesium
41caesium-137 — n. an artificial radioactive isotope of the metallic element caesium. The radiation given off by caesium 137 can be employed in the technique of radiotherapy, but is now rarely used. Symbol: Cs 137. See also teletherapy …
42caesium-137 — n. an artificial radioactive isotope of the metallic element caesium. The radiation given off by caesium 137 can be employed in the technique of radiotherapy, but is now rarely used. Symbol: Cs 137. See also: teletherapy …
43caesium-137 — noun A radioactive isotope of caesium, , having 55 protons and 82 neutrons and which is formed mainly as a fission product by nuclear fission …
44caesium clock — noun an atomic clock that uses the vibrations of caesium atoms as a time standard …
45caesium — chiefly British variant of cesium …
46caesium — /see zee euhm/, n. Chem. cesium. * * * …
47caesium — noun /ˈsiːziəm/ A metallic chemical element (symbol Cs) with an atomic number of 55. See Also: caesious …
48caesium — (sé zi om ) s. m. Métal donnant dans le spectre deux raies bleues (caesius, bleu) …
49caesium — Смотри Цезий (Cs) …
50caesium — cae|si|um BrE cesium AmE [ˈsi:ziəm] n [U] [Date: 1800 1900; : Latin; Origin: caesius bluish grey ] a soft silver white metal that is used in ↑photoelectric cells. It is a chemical ↑element : symbol Cs …